Question

In which lichen, rhizines are used for attachment with the substratum?

• A. Crustose
• B. Foliose
• C. Shruby
• D. Fruticose

Hint:

Foliose lichens have a leaf-like structure and use rhizines for attachment to the substratum.

Answer 1

The Correct Option is B

Step 1: Understanding the types of lichen.
Lichens are symbiotic organisms that consist of a fungus and a photosynthetic partner. The types of lichens differ in their growth forms, such as crustose (crust-like), foliose (leaf-like), and fruticose (bushy). Rhizines are structures used by foliose lichens for attachment.
Step 2: Analyzing the options.
(A) Crustose: Incorrect — Crustose lichens are flat and adhere tightly to the surface, without rhizines for attachment.
(B) Foliose: Correct — Foliose lichens have leaf-like structures with rhizines that help them attach to the substrate.
(C) Shruby: Incorrect — Shruby lichens are not a recognized form, and rhizines are not a characteristic feature.
(D) Fruticose: Incorrect — Fruticose lichens are bushy and do not typically use rhizines for attachment.
Step 3: Conclusion.
The correct answer is (B) Foliose, as they use rhizines for attachment to substrates.